Given(/^valid metadata$/) do
  in_current_dir do
    system("thinp_xml create --nr-thins uniform[4..9] --nr-mappings uniform[1000..10000] > #{xml_file}")
  end

  run_simple("dd if=/dev/zero of=#{dev_file} bs=4k count=1024")
  run_simple("thin_restore -i #{xml_file} -o #{dev_file}")
end

Given(/^a corrupt superblock$/) do
  in_current_dir do
    write_valid_xml(xml_file)
  end

  run_simple("dd if=/dev/zero of=#{dev_file} bs=4k count=1024")
  run_simple("thin_restore -i #{xml_file} -o #{dev_file}")

  in_current_dir do
    corrupt_block(0)
  end
end

When(/^I run thin_check with (.*?)$/) do |opts|
  run_simple("thin_check #{opts} #{dev_file}", false)
end

When(/^I run thin_rmap with (.*?)$/) do |opts|
  run_simple("thin_rmap #{opts} #{dev_file}", false)
end

Then /^it should give no output$/ do
  ps = only_processes.last
  output = ps.stdout + ps.stderr
  output.should == ""
end